Swift : autoreleasepool + try

AutoreleasepoolTry.swift

public func autoreleasepool(@noescape code: () throws -> ()) rethrows {
    try {
        var error: ErrorType?
        autoreleasepool {
            do {
                try code()
            } catch (let e) {
                error = e
            }
        }
        if let error = error {
            throw error
        }
    }()
}

usage.swift

func doSomething {
    do {
        try autoreleasepool {
            try ~~~~~ // ★
        }  
    } catch (let e) {
        print(e) // ★'s error is caught here!
    }
}

👍